Laser beam hardening

The technology of laser hardening is one of the key competences of ERLAS. Since development of the worldwide first hardening machine equipped with a high power diode laser in the year 1998 ERLAS offers laser hardening systems of the type ERLASER HARD and uses them successfully in a job shop for customers. At the locations in Erlangen and Amurrio, Spain three laser beam hardening and cladding systems produce for toolmaking and mechanical engineering.

With a temperature controlled processing and a stepwise adjustable track width of 5 to 60 mm the partially, martensitic conversion hardening has become an established technology, which increasingly replaces hardening by flame or inductor. Even complicated geometries, as are typical for cutting tools of form parts, can be processed precise and safe.

Cross section of a surface hardened partCross section of a 60 mm wide track

All commercial hardenable steels may be hardened by laser, too. The case depth is controllable in between of 0.2 to 1.5 mm. Examples for achievable hardness values are given in table 1.

Material-No. DIN Hardness [HRc +/- 3]
1.1730 C 45 W 57
1.2311 40 CrMnMo 7 57
1.2320 60 CrMo 10 7 60
1.2333 59 CrMo 18 5 60
1.2343 X 38 CrMoV 5 1 55
1.2363 X 100 CrMoV 5 1 62
1.2738 40 CrMnNiMo 8 6 57
1.2767 X 45 NiCrMo 4 57
1.4923 X 22 CrMoV 5 1 50
1.7225 42 CrMo 4 57
1.8159 50 CrV 4 57
0.6025 GG 25 CrMo 59
0.7070 GGG 70 L 61

Using a continuously growing technology data base guarantees the expected hardness results, even for lot size one.

As laser beam hardening only treats the surface, the distorsion is lower compared to other hardening technologies and finishing is not necessary in most cases.

ERLAS uses the consistent CAD/CAM solution Toplas 3D® for programming of the hardening machines. Advantages are the preliminary examination of feasibility, reduced lead times and constant case depths.

Applications exist at tools for massive and sheet metal forming, drawing, bending, cutting or injection molding.

Laser hardening of a cutting edgeLaser hardened cutting edge

Laser beam hardening of a forming toolLaser hardening system (<strong>ER</strong>LASER<sup>®</sup> HARD)

Your inquiry, if possible together with a technical drawing, You please forward to one of the following contacts:

Germany: Mr. Stefan Gropp, Tel.: +49-9131-9066-18,
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Spain: Mr. Carlos Ramos, Tel.: +34-945893531,
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Get more information about laser beam hardening (pdf-file)

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ERLAS Erlanger Lasertechnik GmbH · Kraftwerkstraße 26 · D-91056 Erlangen
Tel.: +49-9131-9066-0 · Fax: +49-9131-9066-66 · Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. · URL: www.erlas.de

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